4 ms·
It's not that bad. You can compress the data on S3 in ORC or Parquet format, and you only pay for the compressed data you read, so 1TB can be 130GB after compr
by illumin8 10y ago
It's not that bad. You can compress the data on S3 in ORC or Parquet format, and you only pay for the compressed data you read, so 1TB can be 130GB after compression. Plus, these formats store summary data, so queries like SELECT COUNT don't have to do a full table scan - they can read just a few KB of summary data for the result.
- dajohnson89 10y agoBut that's a lot of work....Just to have sane costs for reads of your data
- illumin8 10y agoIt's actually just two commands: 1. hive 2. INSERT INTO parquet_table SELECT * FROM csv_table;